Question

these questions cover the content in chapter 6 of the acsm introduction to exercise science textbook. students may use their textbook along with these questions. this is intended to be used as a processing tool.
question 15
1 pts
the intensity and duration of physical activity and exercise are two primary factors affecting substrate utilization. during low - intensity physical activity and exercise, carbohydrate is the primary substrate for energy production. as physical activity or exercise intensity increases, there is a greater reliance on fat as an energy source.
true
false
question 16
1 pts
exercise physiologist are interested in exploring how various resistance training programs impact skeletal muscle physiology. it is known that physical activity and exercise increase embryonic myotubules. scientist are interested in exploring the heterogeneity of skeletal muscle fibers.
true
false

Explanation:

For Question 15: During low - intensity exercise, fat is the primary substrate, and as intensity increases, there is a greater reliance on carbohydrate. So the statement is false.
For Question 16: Exercise physiologists do study how resistance training impacts skeletal muscle physiology, and the increase in embryonic myotubules and exploration of fiber heterogeneity are valid areas of interest. So the statement is true.

Answer:

Question 15: B. False
Question 16: A. True